EXPLANATION OF PLATES. 51 



. EXPLANATION OF PLATES. 



Plate I. 



Cyclops elongatus. 

 Fig. 1. Female seen from above x 60. 



2. Anterior antenna. 



3. Labrum. 



4. Maxilliped of second pair. 



5. Foot of fifth pair. 



Cyclops vicinus. 



6. Male seen from above x 40. 



7. Labrum. 



8. Foot of fifth pair. 



9. Vulvar openings. 



Plate II. 



Cyclops strenuus. 

 Fig. 1. Female seen from above x 80. 



2. Posterior antenna. 



3. Maxilliped of second pair. 



4. Foot of fifth pair. 



Cyclops signatus. 



5. Female seen from above x 40. 



Fig. 1. 







Plate III. 







Cyclops abyssorum. 



1. 



Femah 



3 seen from above x 50. 



2. 



Anterior antenna. 



3. 



Posteri 



ior antenna. 



4. 



Labrum. 



5. 



Foot of first pair. 



6. 



>j 



second pair — outer branch. 



7. 



>< 



third pair. 



8. 



>5 



fourth pair. 



9, 



5; 



fifth pair. 



Plate IV. 

 Cyclops Scolrfieldi. 



1. Female seen from above x 80. 



2. Posterior antenna. 



3. Maxilliped of first pair. 



4. ,, second pair. 



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